SK287651B6 - Closing cylinder, in particular for motor vehicles - Google Patents

Abstract

A closing cylinder, for motor vehicles in particular, comprises a housing. A cylinder core equipped with a blocking channel and spring-loaded tumblers is arranged in an inner cylindrical cavity of said housing. When an incorrect key is inserted into the locking channel, the blocking protrusions of the tumbler engage with a locking groove arranged in an element in which the cylinder core is rotatable mounted. When the correct key is inserted, the blocking protrusions of the tumblers do not go beyond the contour of the cylinder core. Said closing cylinder also has means for coupling the cylinder core with an outlet element when the cylinder core is turned using the correct key and for decoupling the cylinder core from the outlet element of the closing cylinder when the cylinder core is turned using an incorrect key or force, whereby the inner cylindrical cavity of the housing (1) has annular rotatable grooves (11), and in that at least one rib (12), which delimits said annular groove from a side that is located in a direction (o) opposite an axial displacement causing the decoupling of the cylinder core (2) and the outlet element (3), the flanks (130,131) of the blocking grooves extending in the direction (o) of the axial displacement which causes the decoupling of the cylinder core (2) and the outlet element (3), is interrupted by at least one blocking groove (13), wherein the flanks (130,131) of the blocking grooves extend in the direction (o) of the axial displacement which causes the decoupling of the cylinder core (2) and the outlet element (3).

Description

The invention relates to a cylinder lock having a cylindrical core provided with a key channel and spring blades which is connected to the lock outlet member by means of an axially disconnectable clutch when the core is rotated by a corresponding key and disconnected from the lock outlet member when the core is rotated illegally by force; with the wrong key. Unauthorized rotation of the core disengages the coupling between the core and the cylinder lock output member so that the cylinder lock core can be freely rotated without affecting the bolt of the door lock itself, which is mechanically coupled to the cylinder lock output member.

BACKGROUND OF THE INVENTION

Cylindrical locks are known, in particular for motor vehicle doors, in which the cylinder lock core is in non-rotatable relationship with the lock output controlling the bolt of the door lock itself when the core is rotated by the appropriate key and in a rotary slip connection if the core rotated illegally by force or improper key. Said rotary or non-rotary connection of the core to the output member is usually provided by an axially displaceable coupling which in one extreme position of its axial displacement connects the output member to the lock core and disconnects it in the second extreme position of its axial displacement. So eg. DE 43 16 223 A1 and DE 196 04 350 A1 disclose locks of this kind, in which a cage is rotatably and axially displaceably mounted in a cylindrical cavity of the lock housing, in a cylindrical cavity in which a lock core with a key channel and spring blades is mounted. In the absence of an appropriate key in the key channel, when the blocking projections of the slats extend beyond the periphery of the core and engage in the locking groove in the cage, the core is in non-rotatable connection with the cage and rotates the core simultaneously with the cage in the lock case. Since the outer face of the cage is provided with a cam track abutting the cam track on the front collar of the lock housing, the cage is axially displaced relative to the lock housing. In this axial displacement, the inner face of the cage pulls the axially displaceable clutch, which is also the output member of the cylinder lock, out of engagement with the core, thereby disengaging the kinematic coupling between the core and the output member of the cylinder lock. the closing mechanism of the door lock itself.

A disadvantage of this construction and similar known constructions is that the use of a rotatable, axially displaceable cage prevents and / or significantly increases the formation of additional security elements between the core and the cylinder lock housing, such as e.g. protection against pulling and / or driving the core into the lock case.

German Patent DE 4410783 discloses an annular axial slipping clutch comprising, on its inner face, a drive recess for coupling with clutch projections on an axial extension of the cylindrical core and a latching projection on its outer face for engagement with a detent recess in the cylinder lock housing. The annular transfer clutch is in permanent non-rotatable engagement with the cylinder lock output member, and when disengaged from the cylindrical core, engages said locking protrusion into the lock recess in the cylinder lock housing, thereby locking the cylinder lock output member. Disengagement of this annular, axially displaceable clutch from the cylindrical core is accomplished by a cam track formed on the cage face rotatably mounted within the cylinder lock housing, which is rotatably carried by the cylindrical core during its violent or deflection. unauthorized turning. The cam track extends against the force of the coil spring from the engagement with the cylindrical core and engages it with the detent recess in the cylinder lock housing.

If, after forcibly overcoming the lock, it is necessary to open the lock with the appropriate key, rotate the cylindrical core with the cage to the basic starting position of the lock core, where the relative position of the cam tracks on the cage face and the adjacent face of the slip ring will reverse said coil axial spring, in which both the disconnection from the lock housing and the non-rotatable connection of the coupling to the cylindrical core occur.

The disadvantage of this coupling is its complicated and technologically demanding axial guidance in the lock housing, the necessity of using a cam cage for its axial extension, as well as the use of a less reliable elastic means to move the axially displaceable coupling into engagement with the cylinder lock core.

SUMMARY OF THE INVENTION

Essentially, the cylindrical lock according to the preamble of claim 1, characterized in that the inner cylindrical cavity of the housing is provided with annular turning grooves and at least one rib defining the turning groove in the opposite direction of the axial displacement of the core, disengagement of the coupling between the core and the output member is interrupted by at least one locking groove, the sides of which extend in the direction of axial displacement of the core at which the coupling between the core and the output member is disengaged.

In a cylinder lock of such a construction, the coupling between the core and the cylinder lock output member is disengaged without the use of a cage between the cylinder lock core and its housing, thereby providing protection against pulling and / or knocking the core into the lock housing both on the core and in the internal cavity wardrobes.

Advantageously, the cylinder lock housing is formed from two housing halves fixedly connected to one another.

Such a design will allow both technologically undemanding formation of turning grooves and various wide locking grooves in the ribs of the inner cavity of the housing, as well as assembly of the core.

Furthermore, it is advantageous if the cylindrical cavity of the housing is provided with at least one annular safety groove in which an outer collar of the core is mounted with an axial play corresponding at least to the length of the axial displacement required to disengage the coupling.

Such a design substantially prevents the core from being pulled and / or punched out of the cylinder lock housing.

It is also advantageous if the cylinder lock is formed such that the locking grooves of the pairs of slats are arranged in the housing by 180 °.

Such a design does not complicate the cylinder lock technology and allows a sufficient number of combinations.

Advantageously, the sides of the locking grooves are formed by planar flats, with the same acute angles with the planes of symmetry of the locking grooves.

Such a design will both simplify the production technology and ensure the smooth movement of the sides of the locking lugs of the slats along the inclined sides of the locking grooves.

Advantageously, the axial extension of the core is provided with a first axial stop, unilaterally locating the first carrier clutch members in engagement with the second coupling members of the axial extension of the core, and the core is provided with a second axial stop, unilaterally locating the first carrier clutch members out of engagement with the second core.

This design allows for a technologically undemanding mounting of the carrier in the cylinder lock housing and its reliable and trouble-free axial displacement into engagement with the core as well as with the lock housing using fewer cylinder lock components.

Advantageously, the second clutch members are formed by a first radial recess and opposed by a second radial recess formed in a collar for an axial core extension, wherein an annular groove is formed between the collar and the inner core face, the side facing the inner core face forming a second axial stop wherein the first clutch members are formed by the inner radial projections of the carrier.

This construction achieves a minimum carrier length and a minimum length of travel of the clutch members to each other and vice versa.

It is particularly advantageous if the diameter of the end portion of the axial extension is at least behind the collar greater than the diameter of the bottom of the annular groove on which the concave faces of the inner radial lugs of the carrier abut and the first radial recess extends into the axial extension at least to the bottom of the annular groove and its side wall facing the outlet the second radial recess extends into the axial extension below the bottom of the annular groove and, on the side facing the inner core face, terminates in the plane of the side of the annular groove and in the opposite direction passes into a second guide groove whose bottom is distant from the opposite the outer surface of the axial extension by at most a distance equal to the diameter of the bottom of the annular groove.

This design allows both the number of parts of the cylinder lock to be reduced to a minimum and the simple production of the core by die-casting.

For some embodiments of cylindrical locks, it may be advantageous if the diameter of the end portion of the axial extension behind the collar is equal to or less than the diameter of the bottom of the annular groove and the first axial stop is formed by the face of a retaining ring or stopper or nut located just behind the collar on the axial extension.

Such a construction is in turn advantageous for the production of the core or its axial extension by machining.

Preferably, the end of the axial extension is provided with a blind axial bore in which the return spring is received.

This design allows further reduction of the length of the cylinder lock.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

Fig. 1 is a longitudinal section through the cylinder lock separating plane (section B-B of FIG. 3), with the clutch in accordance with the first alternative shown in FIG. 2 is a longitudinal section through the separating plane of the cylinder lock (section H-H in FIG. 4) with the clutch disengaged according to the alternative I, FIG. 3 is a cross-sectional view of the cross-section A-A of FIG. 1, FIG. 4 is a cross-sectional view of the cross-section F-F of FIG. 2, FIG. 5 is a cross-sectional view taken along line D-D in FIG. 6 shows a section G-G of FIG. 4 shows a front part of a lock comprising slats, FIG. Fig. 7 is an axonometric view of the essential components of the exploded cylinder lock according to the alternative I; 8 is a longitudinal section through the cylinder lock with the clutch engaged according to II. alternatives, FIG. 9 is a longitudinal section through the cylinder lock with the clutch disengaged according to II. alternatives, FIG. 10 shows a longitudinal section through an axial extension of the core, FIG. 11 is a view of the axial extension of the core of FIG. 10, FIG. 12 shows a section K-K of FIG. 11, FIG. 13 is a view of the axial extension of the core of FIG. 4 in the V direction, FIG. 14 is a sectional view of the L-L carrier of FIG. 15; FIG. 15 is a side view of the carrier; FIG. 16 is a view of the carrier of FIG. 14 in the direction W, FIG. 17 is an axonometric view of the carrier; FIG. 18 is an exploded perspective view of the cylinder lock according to II. alternatives.

DETAILED DESCRIPTION OF THE INVENTION

FIG. 1 to FIG. 7 shows an alternative I and FIG. 8 to FIG. 18 shows II. an alternative embodiment of a cylinder lock. Both alternatives differ in the construction of the coupling 30 and the return spring 4, 4Λ

As can be seen from the accompanying drawings, preferably FIG. 7, 3 and 1, the cylinder lock consists of a housing 1 which is composed of two housing halves Γ, 1 fixedly connected to each other. The division plane 14 of the two housing halves 1 ', 1' 'is identical to the longitudinal plane of symmetry of the housing 1. As best seen in FIG. 1 and 3, a core 2 with a key channel 22 and slats 20, 20 'disposed in the slots 21 in the core 2 is disposed in the cylindrical cavity of the housing 1. The slats 20, 20' are spring-loaded and the corresponding key is not inserted in the key channel 22. , the locking projections 201 of the slats 20, 20 'extend beyond the periphery of the core 2 and extend into the locking grooves 13, 13' formed in the ribs 12 in the inner cylindrical cavity of the housing 1 symmetrically along the housing dividing plane 14

1. The locking grooves 13 engage the locking projections 201 'of the slats 20 and the locking grooves 13' engage the locking projections 201 'of the slats 20', which extend in the opposite direction to the slats 20. The locking grooves 13,13 are delimited by oblique sides 130,131 at the end faces of the ribs 12 and clamping with the longitudinal plane Q of the symmetry of the locking groove 13 is an acute angle β. The sides of the locking protrusions 201 of the slats 20, 20 'engage said inclined flanks 130, 131 when the core 2 is rotated without the corresponding key inserted. When an appropriate key is inserted into the key channel 22, the slats 20, 20 'are arranged such that their locking projections 201 do not extend beyond the periphery of the core 2 and the core 2 can be rotated in the housing. When the core 2 is rotated with the appropriate key, the cylinder lock output member 3 is also rotated, which in this operative state of the cylinder lock is connected to the core 2 by an axially disengageable clutch 30. The clutch 30 according to alternative 1 consists of clutch protrusions 231 on the axial extension 23 a recess 301 on an axially stationary carrier 31, which is circumferentially rotatably mounted in an annular groove in the housing and is in fixed non-rotatable connection with the output member 3 of the cylinder lock. Of course, another embodiment of the releasable clutch 30 is also possible, for example, when the clutch projection on the axial core extension 23 engages directly into the clutch recess 301 on the axially non-movable outlet member 3. The cylinder lock output member 3 is mechanically coupled to the door lock latch.

If an inappropriate key is inserted into the key channel 22, or the core 2 with the slats 20, 20 'is rotated by force, the sides of the locking projections 201 of the slats 20, 20' engage the sides 130 (see FIGS. 3 and 5) of the locking grooves 13, 13. when the core 2 rotates counterclockwise, and on the sides 131 when the core 2 rotates clockwise. Since the flanks 130, 131 of the locking grooves 13, 13 '(see FIGS. 5, 6) are formed as inclined planar surfaces which extend in the direction O of the disengaging axial displacement b of the core 2 and clamp with the longitudinal plane Q of the locking grooves 13, 13 'acute angle β, as the core 2 rotates, the sides of the locking projections 201 of the slats 20, 20' slide on the inclined surfaces of the sides 130, 131 'and move axially in the direction o. This also leads to an axial displacement in the direction of the core 2 in which the slots 20, 20 'are received. The axial displacement of the slats 20, 20 'and hence of the core 2 occurs as a result of the force force F1 (see Fig. 5), caused by the torque applied to the core 2, on the force component F3 perpendicular to the side 131 of the locking groove 13,13 1 and on the force component F2 causing axial displacement of the slats 20, 20 'in the direction o. In other words, the core 2 is carried in the axial direction by the lamellae 20, 20 '. which are displaceably received in the slots 21 of the core 2 and which are subjected to a force component F2 exerted by the force F1 from the torque applied to the core 2. This axial displacement of the core 2 results in a displacement of length b corresponding to the length of the clutch projection 234 (see FIG. 2), to disengage the clutch protrusion 231 on the axial extension 23 of the core 2 from the clutch recess 301 on the carrier 31. The clutch protrusion 231 extends against the force of the disc spring 4 and continues until clutch 30 disengages. the locking lugs 201 slide from the oblique sides 130, 131 of the locking grooves 13, 13 'into the annular turning grooves 14 (see FIG. 4). In this position, the coupling 30 between the core 2 and the cylinder lock output member 3 is already disengaged, so that when the core 2 is further rotated, the core 2 is held in its annular turning grooves 11 by guiding the locking lugs 201 of the slats 20, 20 '. position, the rotary movement of the core 2 is not transmitted to the lock output member 3. The sides of the turning grooves 11 are formed by the sides of the ribs 12, the end faces of which form the inclined sides 130, 131 of the locking grooves 13. 13 '. After the core 2 has been rotated 180 °, when the protruding locking projections 201 of the slats 20, 20 'align with the locking grooves 13, 13', the axial displacement of the core 2 returns to the left extreme basic position due to the axial bias of the disc spring 4. the coupling 30 between the core 2 and the output member 3 is re-engaged. In this basic position of the cylinder lock, the lock can be opened or closed again after insertion of the key in the key channel 22.

In the basic position of the cylinder lock (see Fig. 1 and Fig. 5), when the core 2 is in the leftmost position and the clutch 30 is engaged, the first outer collar 251 formed on the core 2 abuts the left side of the annular safety groove 151. the side is formed by a first rib 12 defining from the left a first turning groove 14 and a second outer collar 252 formed on the core 2 abuts on the right side of the last rib 12 defining a right turning groove 11 from the right. 151, 152 with a lateral axial clearance a that is equal to or greater than the length of the axial displacement b necessary to eject the clutch protrusion 231 from the clutch recess 301. In this position, the safety collars 251, 252 prevent the core 2 from ripping out of the cylinder lock housing J.

In the pivoting position of the cylinder lock (see Figs. 2, 4 and 6), when the core 2 is in the rightmost position and the clutch 30 is disengaged, the first outer collar 251 of the core 2 engages the left side of the first rib 12 and the second outer collar 252 The right side of the second safety groove 152 in the housing L The safety collars 251. 252 in this position both prevent the core 2 from being driven into the housing I and secondly prevent the screwing of the pulling screw into the key channel 22 of the core 2. its rightmost turning position and begins to turn, making it impossible to screw in said pull-out screw.

Of course, it is possible within the scope of the invention to provide the expanding flanks 130, 131 of the locking grooves 13 also in a manner other than planar surfaces, which form the same acute angles with the planes of symmetry of the locking grooves 13. It is essential that they have to expand in the direction of the axial movement of the core 2 in which the coupling 30 is disengaged between the core and the output member. It is of course also possible to provide a cylindrical lock with an opening displacement of the core 2 from right to left. In this case, the inclined flanks 130, 131 of the locking grooves 13, 13 'will be oriented in the opposite direction and the core 2 will slide axially in the opposite direction when it is rotated by an inappropriate key or force. Also, the disc spring 4 may be replaced by a compression coil spring or other spring element.

As can be seen from FIGS. 8 to FIG. 18, in which II. As an alternative to the cylindrical lock embodiment, the gripper 31, with its outer casing, is mounted rotatably and movably in the inner cavity of the housing 1, extending the axial extension 23 of the core 2 and is permanently non-rotatably connected to the projections 315 of the cylinder lock outlet member 3. If the core 2 is rotated in this state without the corresponding key inserted, sliding of the locking lugs 201 of the slats 20 on the inclined sides 130, 131 of the locking grooves 13 causes axial displacement of the core 2 in the housing 1 against the force of the return spring. the second clutch members 231 on the axial extension 23 of the first clutch members 301 of the gripper 31 and the second axial stop 26 on the gripper 31 are seated, disengaging the clutch 30 and disengaging the core 2 from the outlet member 3. the axial emphasis 26 of the core 2 on the carrier 31 for its axial displacement into a non-rotational connection with the housing 1, which is achieved by inserting the detent protrusion 312 on the outer face of the carrier 31 into the detent recess 16 in the housing 1 of the cylinder lock. At the end of this second phase of the axial displacement of the core 2, due to the protrusion of the locking lugs 201 from the locking grooves 13 into the reversing grooves 11, the core 2 is rotatably supported in the housing. 30 is not transmitted to the carrier 31, which in this relative position of the core 2 to the housing 1 is fixedly locked on the housing 1. Since the gripper 31 is in permanent non-rotatable connection with the lock output member 3, it is also not possible to rotate this output member 3, which is connected by a mechanical coupling (not shown) to a two-lock (not shown). If the cylinder lock is to be returned to its operative state when the key 2 rotates the lock output member 3 and the two door locks (not shown) are rotated by the appropriate key inserted, the core 2 must be rotated to the position where and slide into the locking grooves 13, 13 'and the return spring 4 moves the core 2 back to its functional starting position. In this initial position, the core 2 is in non-rotatable communication with the carrier 31 by means of the clutch 30 engaged and the carrier 31 is detached from the housing 1 so that it can be rotated with it. The described reverse axial movement of the core 2 again consists of two phases. In the first phase, the second clutch members 231 of the axial extension 23 are inserted into the first clutch members 301 of the gripper 31 while the first axial emphasis 25 of the core 2 engages the gripper 31, thereby engaging the clutch 30. 25 of the core 2 on the carrier 31 to force the axial backward movement of the carrier 31 and thereby to eject its locking projection 312 from the locking recess 16 in the housing.

As best seen in FIG. 3 to FIG. 6, an axial extension 23 extends from the stepped inner face 24 of the core 2, in which an end axial bore 232 is formed to receive the return spring 4. The pretensioned return spring 4 is disposed axially between the core 2 and the outlet member 3 and pushes the core 2 into its the initial functional position when the coupling 30 between the core 2 and the carrier is engaged. Located on the axial extension 23 is a collar 27 in which a first radial recess 271 is formed and opposed to a second radial recess 272. These radial recesses 271, 272 form second clutch members 231 into which the first clutch members 301 engage when clutch 3 is engaged. 3, formed by radial projections 301 '. An annular groove 28 is formed between the collar 27 and the inner face 24 of the core 2, the flank 281 facing the core 2 forming a second axial stop 26 on the carrier 3. As best seen in FIG. 10 and FIG. 13, the first radial recess 271 is formed in the collar 27 and extends in the radial direction into the axial extension 23 at least to the bottom of the annular groove 28, its side wall facing the outlet member 3 forming the first axial stop 25 of the core 2 to the carrier 31. the side wall of the first radial recess 271 lies in the plane of the side 281 of the annular groove 28 that forms the second axial stop 26 of the core 2. The second radial recess 272 is formed in the shoulder 27 against the first radial recess 271 and extends radially in the axial extension 23 below the bottom the annular groove 28 and its side wall facing the face 24 of the core 2 lie in the plane of the side of the annular groove 28 facing the outlet member 3. In other words, the second radial recess 272 does not extend into the bottom of the annular groove 28 and terminates in one axial direction just at the annular interface grooves 28 and collar 27, while in the second in the axial direction passes into the second sliding groove 233 to receive the radial projection 30 'of the carrier 31 for the axial extension 23 of the core 2.

The radial projections 301 'of the gripper 31 forming the first clutch members 301, with their clutch 30 engaged, engage the sides of the first and second radial recesses 271 and 272 in the collar 27 forming the second clutch members 231, the gripper 31 being radially and axially guided by its an outer cylindrical shell in the cylindrical shoulder of the cabinet 1.

As best seen in FIG. 14 to FIG. 16 and FIG. 18, the gripper 31 is formed as an annular ring with an outer cylindrical sheath, at the face of which the outlet member 2 faces a latching projection 312 for engaging a retention recess 16 in the cylinder lock housing 1 and a grip recess 314 for the gripping projections 315 of the outlet member 3. On the side of the carrier 3, an inner face ring 310 is formed from which the first clutch members 301 in the form of radial projections 301 'with concave faces 313. project. These engage with the coupling 30 open to the bottom of the annular groove 28 As the spacing between the concave faces 313 is equal to the diameter D 1 of the annular groove 28 which is smaller than the diameter D? of the axial extension 23 behind the collar 27, the axial extension 23 is provided with a second sliding groove 233 following the second radial recess 272 and an opposing first sliding groove 233 '. The bottom of the second sliding groove 233 is spaced from the opposite surface of the axial extension 23 or from the bottom of the first sliding groove 233 'by a maximum distance L, equal to the bottom diameter D1 of the annular groove 28 in order to slide the radial projections 301' of the carrier 3i. when assembling the cylinder lock.

The described advantageous construction allows easy production of the core 2, the carrier 31 and the housing by die casting using a minimum number of cylinder lock components.

It is of course possible within the scope of the invention to provide the first axial stop 25 on the axial extension 23 by other means, for example by a locking ring face seated in a locking groove behind the collar 27 or stops fixed to the axial extension 23 or nut end screwed on the axial extension 23.

Industrial usability

The cylinder lock according to the present invention can be advantageously used wherever it is necessary for the lock to function even after its unauthorized crossing and where high resistance to pulling and / or knocking of the core out of the housing is prescribed, in particular at motor vehicle doors.

PATENT CLAIMS

Claims (10)

Cylindrical lock, in particular for motor vehicles, comprising a housing in a cylindrical cavity in which a rotary core with a key channel and spring blades is located, the locking projections of which, in the absence of a key in the key channel, engage in the locking grooves formed in the core is rotatably mounted and, when the key is inserted in the key channel, the lamella blocking protrusions do not extend beyond the core circumference, the cylinder lock further comprising means for interconnecting the core with the lock output member when the core is rotated by the corresponding key inserted into the key channel; a lock member when the core is rotated by force or an inappropriate key, characterized in that the inner cylindrical cavity of the housing (1) is provided with an annular turning grooves (11) and at least one rib (12) delimiting the turning groove (11) in the opposite directionthe axial displacement direction (o) of the core (2) at which the clutch (30) disengages between the core (2) and the output member (3) is interrupted by at least one locking groove (13) whose flanks (130, 131) they extend in the axial displacement direction (o) of the core (2) at which the coupling (30) is disengaged between the core (2) and the outlet member (3). The cylinder lock according to claim 1, characterized in that the housing (1) is formed from two housing halves (1, 1) fixedly connected to each other. Cylinder lock according to claim 1 or 2, characterized in that the cylindrical cavity of the housing (1) is provided with at least one annular safety groove (151, 152) in which it has an axial clearance (a) corresponding at least to the length of the axial displacement (1). b), necessary to disengage the coupling (30), the outer collar (251,252) of the core (2). Cylinder lock according to claim 1 or 2, characterized in that the locking grooves (13) of the pairs of slats (20) are arranged in the housing (1) by 180 °. The cylinder lock according to claim 1 or 2, characterized in that the flanks (130, 131) of the locking grooves (13) are formed by planar flats clamping the same acute angles (15) with the planes of symmetry (Q) of the locking grooves (13). Cylinder lock according to at least one of the preceding claims, characterized in that the axial extension (23) of the core (2) is provided with a first axial stop (25) unilaterally establishing the first clutch members (301) of the carrier (31) in engagement with the other. the axial extension coupling members (231) of the core (2) and the core (2) is provided with a second axial stop (26) unilaterally locating the first coupling members (301) of the carrier (31) away from the second axial extension coupling members (231) (23) cores (2). Cylinder lock according to claim 6, characterized in that the second clutch members (231) are formed by a first radial recess (271) and opposed by a second radial recess (272) formed in the collar (27) on the axial extension of the core (23). ), wherein an annular groove (28) is formed between the collar (27) and the inner face of the core (2), the side (281) of which faces the inner face of the core (2) forms a second axial stop (26); are formed by the inner radial projections (301 ') of the carrier (31). Cylinder lock according to claim 7, characterized in that the diameter (D2) of the end portion of the axial extension (23) at least behind the collar (27) is larger than the diameter (D1) of the bottom of the annular groove (28) on which 313) of the inner radial projections (30 ') of the carrier (31), that the first radial recess (271) extends into the axial extension (23) at least to the bottom of the annular groove (28) and its side wall facing the outlet member (3) of the cylinder lock a stop (25), while the second radial recess (272) extends into the axial extension (23) below the bottom of the annular groove (28) and terminates on the side facing the inner face (24) of the core (2) in the plane of the annular groove (28) and in the opposite direction passes into the second guide groove (233), the bottom of which is spaced from the opposite outer surface of the axial extension (23) by a maximum distance (L) equal to the diameter (DJ bottom finger) the groove (28). Cylinder lock according to claim 7, characterized in that the diameter (D2) of the end portion of the axial extension (23) behind the collar (27) is equal to or less than the diameter (D1) of the bottom of the annular groove (28) and the first axial stop (25) is formed by the face of a circlip or a stop or nut located just behind the collar (27) on the axial extension (23). The cylinder lock according to claim 7, characterized in that the end of the axial extension (23) is provided with a blind axial bore (232) in which the return spring (4 ') is received. 8 drawings